A 30.0-L sample of methane gas (CH4) has a temperature of 5.0°C if the gas is kept constant, what would the gas volume be if the temperature is lowered to -3.0°C?

Question

For a certain gas sample obeying Charle's law the proportionality constant k has a value of 0.297 L/K, What would the temperature be in °C for a gas volume of 750.0mL?

Answer 1

1. If the gas is kept constant WHAT. I assume you mean constant pressure.
30.0 L = V1
5.0 C = (273 + 5.0 kelvin) =T1
final volume = V2 in L
final T = 273 + C = 273 + (-3) = 270 K = T2
Use V1/T1 = V2/T2.Substitute and solve for V2 in L.
Post your work if you get stuck.
2. V/degrees K = k = 0.279
Plug in 750 for V and solve fir degreeK, then convert to degrees C. Post youw work if you get stuck.

Answer 2

I got a little question in #2 the answer will be negative degrees? thanks for the help!

Answer 3

No, I don't get a negative number for degrees C. Post your work if you want me to check it.